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go/test/fixedbugs/issue44370.dir/a.go
Dan Scales 9a555fc24c cmd/compile: fix missing descend in Addrtaken for closures.
ComputeAddrtaken needs to descend into closures, now that imported
bodies can include closures. The bug was that we weren't properly
setting Addrtaken for a variable inside a closure inside a function that
we were importing.

For now, still disable inlining of functions with closures for -G mode.
I'll enable it in a later change -- there are just a few fixes related
to the fact that we don't need to set Ntype for closure functions.

Added a test derived from the cilium repro in the issue.

Fixes #44370

Change-Id: Ida2a403636bf8740b471b3ad68b5474951811e19
Reviewed-on: https://go-review.googlesource.com/c/go/+/296649
Run-TryBot: Dan Scales <danscales@google.com>
Trust: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2021-02-26 02:11:50 +00:00

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Go

// Copyright 2021 The Go Authors. All rights reserved. Use of this
// source code is governed by a BSD-style license that can be found in
// the LICENSE file.
package a
// A StoppableWaitGroup waits for a collection of goroutines to finish.
type StoppableWaitGroup struct {
// i is the internal counter which can store tolerate negative values
// as opposed the golang's library WaitGroup.
i *int64
}
// NewStoppableWaitGroup returns a new StoppableWaitGroup. When the 'Stop' is
// executed, following 'Add()' calls won't have any effect.
func NewStoppableWaitGroup() *StoppableWaitGroup {
return &StoppableWaitGroup{
i: func() *int64 { i := int64(0); return &i }(),
}
}